Rayleigh–Benard System - chaos in convection
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main.cpp
00001 #include "TFT_4DGL.h" 00002 00003 TFT_4DGL lcd(p9,p10,p11); 00004 00005 int main() { 00006 00007 float x,y,z; 00008 int xp,yp; 00009 00010 float a = 9; 00011 float r = 12; 00012 float b = 5; 00013 00014 float dt = 0.05; 00015 00016 float x1 = 0.1; 00017 float y1 = 0; 00018 float z1 = 0; 00019 00020 while(1) 00021 00022 { 00023 00024 x = x1+(-a*x1+a*y1)*dt; 00025 y = y1+(r*x1-y1-x1*z1)*dt; 00026 z = z1+(x1*y1-b*z1)*dt; 00027 00028 xp = (int)floor(z*9); 00029 yp = (int)floor(y*10); 00030 00031 lcd.pixel(20+xp,160+yp,WHITE); 00032 00033 x1 = x; 00034 y1 = y; 00035 z1 = z; 00036 00037 } 00038 00039 }
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Kamil Ondrousek